Using resin on duct tape?

So I'm building my first prop and I have a lot of duct tape used... and I mean A LOT, so I was planning on putting a layer of resin on it. But my question is would the resin work with the duct tape or would I have to put another layer of something before I can put the resin.

I'm making a helmet and also using the resin to get it a bit tougher and so I can apply some fiberglass cloth on the inside for re-enforcement. What would you recommend I put on so it so I can use the resin?